You can also find Dragon on Ebay - various versions - check out sellers and product of course before bidding/buying.
Vista & Win7 users & MACs have it too - you might try these first to see if they work for you or not
**Win 7 & Vista Have A voice recognition installed with it - so check your control panel to set it up**
Vista VR set up -
http://www.google.com/#sclient=psy&h...301948d8bf90ef
Win 7 VR set up -
http://www.google.com/#sclient=psy&h...301948d8bf90ef
Also a good Mic & a good sound card in the computer is very important.